Questions in Motion in A Straight Line

Select	Question
	A person travels along a straight road for the first half time with a velocity \[{v_1}\] and the next half time with a velocity \[{v_2}\] . The mean velocity \[V\] of the man is
	If a car covers 2/5th of the total distance with v1 speed and 3/5th distance with v2 then average speed is
	Which of the following options is correct for the object having a straight line motion represented by the following graph
	The numerical ratio of displacement to the distance covered is always
	A 100 m long train is moving with a uniform velocity of 45 km/hr. The time taken by the train to cross a bridge of length 1 km is
	A particle moves for 20 seconds with velocity 3 m/s and then velocity 4 m/s for another 20 seconds and finally moves with velocity 5 m/s for next 20 seconds. What is the average velocity of the particle
	The correct statement from the following is
	A bullet fired into a fixed target loses half of its velocity after penetrating 3 cm. How much further it will penetrate before coming to rest assuming that it faces constant resistance to motion?
	Two boys are standing at the ends A and B of a ground where \[AB = a\]. The boy at B starts running in a direction perpendicular to AB with velocity \[{v_1}.\] The boy at A starts running simultaneously with velocity \[v\] and catches the other boy in a time t, where t is
	A car travels half the distance with constant velocity of 40 kmph and the remaining half with a constant velocity of 60 kmph. The average velocity of the car in kmph is